feat(asgi): Add option to disable suppressing chained exceptions (getsentry#5714)

alexander-alderman-webb · web-flow · commit 48dc5661dcfd · 2026-03-20T09:33:43.000+01:00
Add the experimental `suppress_asgi_chained_exceptions` option. The option defaults to `True` when unset, preserving the current behavior.
diff --git a/sentry_sdk/consts.py b/sentry_sdk/consts.py
@@ -84,6 +84,7 @@ class CompressionAlgo(Enum):
             "before_send_metric": Optional[Callable[[Metric, Hint], Optional[Metric]]],
             "trace_lifecycle": Optional[Literal["static", "stream"]],
             "ignore_spans": Optional[IgnoreSpansConfig],
+            "suppress_asgi_chained_exceptions": Optional[bool],
         },
         total=False,
     )
diff --git a/sentry_sdk/integrations/asgi.py b/sentry_sdk/integrations/asgi.py
@@ -4,6 +4,7 @@
 Based on Tom Christie's `sentry-asgi <https://github.com/encode/sentry-asgi>`.
 """
 
+import sys
 import asyncio
 import inspect
 from copy import deepcopy
@@ -37,6 +38,8 @@
     logger,
     transaction_from_function,
     _get_installed_modules,
+    reraise,
+    capture_internal_exceptions,
 )
 
 from typing import TYPE_CHECKING
@@ -187,8 +190,19 @@ async def _run_app(
                     return await self.app(scope, receive, send)
 
             except Exception as exc:
-                self._capture_lifespan_exception(exc)
-                raise exc from None
+                suppress_chained_exceptions = (
+                    sentry_sdk.get_client()
+                    .options.get("_experiments", {})
+                    .get("suppress_asgi_chained_exceptions", True)
+                )
+                if suppress_chained_exceptions:
+                    self._capture_lifespan_exception(exc)
+                    raise exc from None
+
+                exc_info = sys.exc_info()
+                with capture_internal_exceptions():
+                    self._capture_lifespan_exception(exc)
+                reraise(*exc_info)
 
         client = sentry_sdk.get_client()
         span_streaming = has_span_streaming_enabled(client.options)
@@ -323,8 +337,19 @@ async def _sentry_wrapped_send(
                                     scope, receive, _sentry_wrapped_send
                                 )
                         except Exception as exc:
-                            self._capture_request_exception(exc)
-                            raise exc from None
+                            suppress_chained_exceptions = (
+                                sentry_sdk.get_client()
+                                .options.get("_experiments", {})
+                                .get("suppress_asgi_chained_exceptions", True)
+                            )
+                            if suppress_chained_exceptions:
+                                self._capture_request_exception(exc)
+                                raise exc from None
+
+                            exc_info = sys.exc_info()
+                            with capture_internal_exceptions():
+                                self._capture_request_exception(exc)
+                            reraise(*exc_info)
         finally:
             _asgi_middleware_applied.set(False)
 

Original file line number	Diff line number	Diff line change
`@@ -84,6 +84,7 @@ class CompressionAlgo(Enum):`
`84`	`84`	`"before_send_metric": Optional[Callable[[Metric, Hint], Optional[Metric]]],`
`85`	`85`	`"trace_lifecycle": Optional[Literal["static", "stream"]],`
`86`	`86`	`"ignore_spans": Optional[IgnoreSpansConfig],`
	`87`	`+ "suppress_asgi_chained_exceptions": Optional[bool],`
`87`	`88`	`},`
`88`	`89`	`total=False,`
`89`	`90`	`)`